The invention relates to a suction bag emptying device (20) comprising a container (19) for receiving a suction bag (3), the container (19) having a discharge point for discharging the contents of the suction bag. The emptying device (20) comprises means for puncturing a bag portion without making contact with the bag. The invention further relates to an assembly comprising at least one suction bag (3) and a suction bag emptying device (20), and to a method for emptying a suction bag (3).